/DO ___ 



Xatitrc. 

 .v;l 18, 1503, 



Nature 



A WEEKLY 



ILLUSTRATED JOURNAL OF SCIENCE 



VOLUME LXYII 



NOVEMBER 1902 to APRIL 1903 



" To the solid ground 

 Of ' Nature trusts the mind which builds for aye." — Wordsworth f> 



Con Don 



M ACM I L LAN AND CO., Limited 

 NEW YORK: THE MACMILLAN COMPANY 



